New CAT Equipment

775G Off-Highway Truck

Having a solid track record in the quarry and aggregates industry, Cat’s 775G has been designed and manufactured using the latest quality control technologies—both virtually and hands on—to ensure your Off-Highway Truck is ready to do work. Built with a Cat C27 diesel engine, the 775G has improved fuel efficiency and delivers an additional 5% horsepower. Our 775G is a great pass match for the Cat 988K or 990K Wheel Loader, too. By having the Cat G Series trucks in your haul fleets, you can be more productive, spend less time on maintenance, and support the environment with new levels of eco performance. Which ultimately allows you to make a positive impact within your business and community every day.

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    Product Specs


    Engine Model Cat® C27
    Rated Engine Speed 1800 r/min
    Gross Power - SAE J1995 825 HP
    Net Power - SAE J1349 768 HP
    Net Power - 80/1269/EEC 775 HP
    Net Power - ISO 9249 775 HP
    Bore 5.4 in
    Stroke 6 in
    Displacement 1648 in³
    Engine Power - ISO 14396 812 HP
    Net Torque 3148 ft-lb
    Emissions Meets EU Stage V emission standards.
    Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
    Peak Torque - Speed 1200 r/min
    Note (3) No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.
    Note (1) Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard.

    Weights - Approximate

    Maximum Gross Vehicle Weight 246503 lb

    Operating Specifications

    Nominal Payload Class (100%) 70.5 ton (US)
    Top Speed - Loaded 41.6 mile/h
    Note (1) Capacity with Dual Slope body – no liner.
    Maximum Allowable Payload (120%)* 84.6 ton (US)
    Body Capacity - SAE 2:1 55.23 yd³
    Maximum Working Payload (110%) 77.5 ton (US)
    Target Payload (100%) 70.5 ton (US)
    Note (2) * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.


    Forward - 1 6.6 mile/h
    Forward - 2 9.3 mile/h
    Forward - 3 12.6 mile/h
    Forward - 4 16.8 mile/h
    Forward - 5 22.8 mile/h
    Forward - 6 30.7 mile/h
    Forward - 7 41.6 mile/h
    Reverse 8.7 mile/h
    Note Maximum travel speeds with standard 24.00R35 (E4) tires.

    Final Drives

    Differential Ratio 3.64:1
    Planetary Ratio 4.80:1
    Total Reduction Ratio 17.49:1


    Brake Surface - Front 257 in²
    Brake Surface - Rear 9497 in²
    Brake Standards ISO 3450:2011

    Body Hoists

    Pump Flow - High Idle 118 gal/min
    Relief Valve Setting - Raise 2502 psi
    Relief Valve Setting - Lower 500 psi
    Body Raise Time - High Idle 10 s
    Body Lower Time - Float 14 s
    Body Power Down - High Idle 14 s

    Capacity - Dual Slope - 100% Fill Factor

    Struck 42.7 yd³
    Note (1) Contact your local Cat dealer for body recommendation.
    Heaped (SAE 2:1)* 55.5 yd³
    Note (2) *ISO 6483:1980

    Capacity - Flat Floor - 100% Fill Factor

    Struck 42.2 yd³
    Note (1) Contact your local Cat dealer for body recommendation.
    Heaped (SAE 2:1)* 55.2 yd³
    Note (2) *ISO 6483:1980

    Weight Distributions - Approximate

    Front Axle - Empty 50 %
    Front Axle - Loaded 34 %
    Rear Axle - Empty 50 %
    Rear Axle - Loaded 66 %


    Empty Loaded Cylinder Stroke Rear 5.8 in
    Empty Loaded Cylinder Stroke Front 9.2 in
    Rear axle - Oscillation 8.1°

    Service Refill Capacities

    Fuel Tank 210 gal (US)
    Cooling System 45 gal (US)
    Differential - Final Drives 38 gal (US)
    Steering Tank 9.5 gal (US)
    Steering System - Including Tank 14 gal (US)
    Torque Converter - Transmission System - HRC 18 gal (US)
    Brake Hoist System 85 gal (US)
    Crankcase 24 gal (US)
    Torque Converter - Transmission System - LRC 16 gal (US)
    Brake/Hoist Hydraulic Tank 46.5 gal (US)


    Note (1) Productive capabilities of the 775G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
    Note (2) Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
    Standard Tire 24.00R35 (E4)


    ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
    FOPS Standards Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.


    Sound Standards (2) The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 86 dB(A).
    Sound Standards (1) The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.
    Sound Standards (3) Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.


    Turning Diameter - Front 77.1 ft
    Steering Standards ISO 5010:2007
    Steer Angle 31 °
    Turning Circle - Clearance Diameter 85.6 ft


    Recyclability 98%